Patrick Bronte opposed the match and refused to attend the wedding at the last moment, meaning that Charlotte's old headmistress had to give her away. Biographers speculate as to how Charlotte really felt about Arthur Bell Nicholls, as her letters retreat into reticence about him during their courtship and brief marriage -- she died less than a year after the marriage, pregnant, probably from hyperemesis-induced dehydration and exhaustion, aged 38. She was touched by his extreme devotion to her, especially after two unrequited attractions to her Belgian teacher and her publisher, and she'd lost so much when all her siblings died.
I loved what I saw of To Walk Invisible, and will rewatch. I thought the casting was brilliant - thank heavens to have a properly plain and short Charlotte! Branwell also brilliant - and I loved how it was shot, and that they had Yorkshire accents (which were remarked on by London contemporaries, though her schoolmates thought Charlotte sounded Irish), and that life in Haworth and the Parsonage wasn't made to look cutesy. And that Emily was properly ferocious.
Of course there are things fudged or left out I'd have loved to see in - like the Belgium trip, and Mary Taylor, and their continuing obsession with fantasy games, and Charlotte being lionised in London ---and will someone, for the love of God, tell TV producers that writers do no sit down to a new novel by writing out the title and their name and underlining it!?? 